Hex #623a35 or rgb(98,58,53) in RGB space is the tint of red. It has hue angle of 6.67 degrees, value = 38 and saturation = 46. #623a35 can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of red, 4 drops of blue, 4 drops of black.
Nearest safe hex - #663333. Below you can see the block with #623a35 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #623a35 to the mixer and play with it.